GM Service Manual Online
For 1990-2009 cars only

Draining Procedure

Caution: Never drain or store fuel in an open container. Always use an approved fuel storage container in order to reduce the chance of fire or explosion.

Caution: Place a dry chemical (Class B) fire extinguisher nearby before performing any on-vehicle service procedures. Failure to follow these precautions may result in personal injury.

  1. Relieve the fuel pressure. Refer to Fuel Pressure Relief .
  2. Raise the vehicle.
  3. Disconnect the fuel return pipe quick connect fitting. Refer to Metal Collar Quick Connect Fitting Service .
  4. Use a hand operated pump device to drain as much fuel through the fuel return pipe as possible.
  5. Reconnect the fuel return pipe quick connect fitting. Refer to Metal Collar Quick Connect Fitting Service
  6. Lower the vehicle.